User ID can be viewed/copied from the Lobby [Options] ▶ [User ID].
Please double-check the User ID before using the coupon.
Coupon rewards will be sent your mailbox.
Expired coupons cannot be used.
A coupon that has been used cannot be used again.
A coupon can only be used once per User ID.
Rewards left unclaimed in the mailbox for 7 days may be deleted.
In case rewards are sent to another account with an incorrect User ID entered, we seek your understanding that it would be difficult for us to help you.